For the record, I agree that the average pet owner should spay or neuter if they are not capable of responsibly owning an intact pet. Most aren't. I think I have mentioned that already.
However, to generalize advice on the basis of one paper is completely unethical from a science community point of view and misleading people by hiding behind a generalization on these grounds is abhorrent.
I should like to see other studies presented here for a more balanced view. If that is not something which can be achieved, then the whole thread is wasted and we should all go for drinks.
Dottie
My vet said where neutering MAY reduce some cancers and diseases, it is a trade off as it also may result in the INCREASE of some cancers and diseases. He advised that I not consider it unless I had issues with marking because he could not recommend it on health grounds, otherwise.
My breeder, who is a Crufts show judge and international show judge, also advised that I not neuter my dog before three years of age for various reasons. Mostly, because of growth plates not developing appropriately.